in reply to
Re^2: On showing the weakness in the MD5 digest function and getting bitten by scalar context
in thread On showing the weakness in the MD5 digest function and getting bitten by scalar context
Just for the record... yes, I work at NIST, but not in the Security division.
However, I use hashes at the core of my work -
The official statement is below :
NIST Brief Comments on Recent Cryptanalytic Attacks on Secure Hashing Functions and the Continued Security Provided by SHA-1
Cryptographic hash functions that compute a fixed size message digest from arbitrary size messages are widely used for many purposes in cryptography, including digital signatures. At the recent Crypto2004 conference, researchers announced that they had discovered a way to "break" a number of hash algorithms, including MD4, MD5, HAVAL-128, RIPEMD and the long superseded Federal Standard SHA-0 algorithm. The current Federal Information Processing Standard SHA-1 algorithm, which has been in effect since it replaced SHA-0 in 1994, was also analyzed, and a weakened variant was broken, but the full SHA-1 function was not broken and no collisions were found in SHA-1. The results presented so far on SHA-1 do not call its security into question. However, due to advances in technology, NIST plans to phase out of SHA-1 in favor of the larger and stronger hash functions (SHA-224, SHA-256, SHA-384 and SHA-512) by 2010. SHA-1 and the larger hash functions are specified in FIPS 180-2. For planning purposes by Federal agencies and others, note also that the use of other cryptographic algorithms of similar strength to SHA-1 will also be phased out in 2010.